I want to build an electric skateboard (like those you see on the market) out of a regular skateboard.
The chassis would be basically the skateboard itself, I suppose I can leave the two front wheels and their axis, right? So I`d just have to take off the back axis because that`s where the motor should be.
I have almost no experience on RC, I`ve only built that $50 dollar bot until the part where he tests it with a remote control (so I`ve build a simple RC vehicle, not an actual bot).
I only want the electric skateboard to move forward, no differential drive or anything like that.
Can I by any chance do that without a microcontroller? I though perhaps I could do that with high torque servos such as the "Hitec Ultra Torque, Titanium Gear Digital Robot Servo"
Specs->Voltage: 6.0 - 7.4V
Torque: 333 oz/in @ 6.0V, (417 oz/in @ 7.4V)
Operating speed: .17 sec/60° @ 6.0V
The skateboard doesn`t have to be very fast but I want it to work for a teenager/young adult. I also want it to be as simple as possible.
If I can`t use servos, and if I must use DC Motors, is there a simple way to do this (something plug and play like it happens with servos)?
I`d rather have a button on the skateboard that you step on than a wireless remote control.
Also, how do I attach the servos / motors to the back wheels (regular skateboard wheels)? I suppose I need a specific hardware to do this, and I can`t use the regular back axis on the skateboard. Where can I find that hardware? I`d also like to know about the batteries and about the motor control (button or wireless remote control).
Here are some pictures to show what I want to do-->http://i13.ebayimg.com/01/i/07/cd/6e/34_1.JPG
(this shows that the front axis is regular, the batteries are in the middle and the back axis has a build in motor. this specific skateboard works with a wireless remote control, but I`d rather use a button.)http://i1.ebayimg.com/03/i/000/c6/39/e195_1.JPG
(here you can see on a different skate pretty much the same as in the first skate. the hardware is a bit different.)http://www.dotme.ws/ebay/ebaypics/liquidation/skateBRD/skbrd7.jpg
(here you can see the button I`m talking about to control the motor. You step on it, the skate moves forward, you let go, the skate stops. but this is a three-wheeled skate, and that`s not what I want, I just wanted to show the button).
Just so you know, I`m from Brazil so any store suggestions such as Wal Mart doesn`t really work for me because they don`t ship to my country. I buy from stores like Tower Hobbies, RobotMarketPlace, etc. But if you just say a product`s name I can probably find a store that will sell it to my country.
Well, so I have a basic idea of what I want to do but don`t know really where to start.
Any help will be very much appreciated. Thanks in advance, Julia.